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soil cycle

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  • gas that absorbed from the air by plants and used during photosynthesis
    carbon dioxide
  • what is compost?
  • it released as a waste product of photosynthesis
    oxygen
  • how many percentage is composed of nitrogen gas?
    79%
  • A man who is a machinist for incinerator company
    Rufus STokes
  • how many types of soils just in US
    80,000
  • describe soil?
  • what is erosion
  • natural substances produced without chemicals; not man made
    organic mulch
  • what do you call Mr. Stokes invention?
    "clean air machine"
  • where doe other plants receives most of it's nutrients?
    soil
  • about how many years to form new soil?
    50-100
  • substance that contain nitrogen and oxygen
    nitrates
  • reason why there's a losr of nutrients in the soil
    erosion
  • one gases found in our air
    nitrogen
  • samples of organis materials
    rotted of remains of dead animals
  • give examples of decomposer
    molds, mushrooms, bacteria
  • soil is a unrenewable source
    false
  • harmful substances in the environment
    pollution
  • a person who works with machinery
    machinist
  • a place where substances are burned reducing them to ashes
    incinerator
  • what is a decomposer?
  • reason of the great increase of pollution
    use of fossil fuels
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